@misc{indiciaeecfc1a3cb5e6,
  title = {Surface water supply of the United States, 1949, Part V, Hudson Bay and upper Mississippi River basins},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1951},
  doi = {10.3133/wsp1145},
  url = {https://pubs.usgs.gov/publication/wsp1145},
  note = {Source identifier: wsp1145}
}